diff options
| author | Nick Piggin <npiggin@kernel.dk> | 2010-12-15 19:11:32 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk> | 2010-12-15 20:50:39 +1100 |
| commit | 5c85fce915eabb18258aad65897acb797e9af693 (patch) | |
| tree | e53c32e1930091e2f1b1117b095cabdc18a5bdbd /kernel | |
| parent | 2ceec45114ec746210f6088156751b8b01684844 (diff) | |
fs: dcache scale dentry refcount
Make d_count non-atomic and protect it with d_lock. This allows us to ensure a
0 refcount dentry remains 0 without dcache_lock. It is also fairly natural when
we start protecting many other dentry members with d_lock.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cgroup.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 66a416b42c18..7ead732a6468 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -3638,9 +3638,7 @@ again: list_del(&cgrp->sibling); cgroup_unlock_hierarchy(cgrp->root); - spin_lock(&cgrp->dentry->d_lock); d = dget(cgrp->dentry); - spin_unlock(&d->d_lock); cgroup_d_remove_dir(d); dput(d); |